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Physics

Physics
The unit of noise pollution (level) is :

Decibel
Decimal
Ppm
None of these

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Physics
The energy of a photon varies directly with its

Frequency
Speed
Wave length
None of these

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Physics
A soap bubble shows colours when illuminated with white light. This is due to

Diffraction
Interference
Polarisation
Reflection

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Physics
When water freezes its density

Becomes Zero
Remains constant
Increases
Decreases

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Physics
What measures Air pressure?

Barkometer
Spectrometer
Bolometer
Barometer

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Physics
A light year is a measure of :

Distance
Time
Velocity
Speed

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MORE MCQ ON Physics

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